How does this formatter preserve multi-byte Unicode emojis and accents?

Standard JavaScript string slicing (str.slice()) often breaks 4-byte astral plane characters (such as emojis 🚀) into invalid surrogate pairs. Our formatter splits text strictly by Unicode code points (Array.from(str)), ensuring characters and accents remain intact during wrapping and padding.

Can I add Markdown blockquotes or code comment prefixes to multiple lines at once?

Yes! Select the "Prefix & Suffix" mode to add custom markers (like "> ", "// ", "# ", or "- [ ] ") to every single line simultaneously.

How does word wrap work without breaking words in the middle?

Our word-wrap algorithm splits text at whitespace word boundaries rather than slicing arbitrary characters, preserving readability for markdown and text formatting.

Tools/Text Formatter

Unicode Text Formatter & Multi-Line Stylizer

Format, center-align, pad, word-wrap, prefix, sort, and deduplicate text documents and code snippets with complete Unicode character safety.

4Total Lines

13Total Words

102Total Characters

163 BFormatted Byte Size

Target Width (40 chars):

Pad Character:

Source Text (Lines)

Unicode 16.0 Super Suite
Universal Character Encoding
Developer Power Tools
Typography & Steganography

Formatted Output

======== Unicode 16.0 Super Suite ====== ====== Universal Character Encoding ==== ========= Developer Power Tools ======== ======= Typography & Steganography =====

Unicode-Safe Text Formatting & Multi-Line Stream Manipulation

When processing text for terminal output, README markdown files, SQL migrations, or source code comments, developers frequently need to align, pad, and wrap lines to standard column boundaries (such as 80 or 120 characters).

However, naive byte-based or character-index formatters frequently break international text. In JavaScript, string.length counts UTF-16 code units rather than visual characters, causing emojis (🚀) or accented combining letters (e + ◌́) to count as two units. Our formatter splits text strictly by Unicode code points (Array.from(str)), guaranteeing that emojis, foreign scripts, and diacritics are never corrupted during padding or slicing operations.

Common Developer Formatting Use Cases

•Markdown Callouts: Automatically prepend > to entire paragraphs for quotes and callout boxes.
•Code Commenting: Prepend // , # , or -- to multi-line code snippets without manual editing.
•Terminal Box Headers: Center-align section headings with decorative characters (=== TITLE ===).
•List Deduplication & Sorting: Clean messy logs or ID lists into sorted, unique entries in 1 click.

Frequently Asked Questions (FAQs)

How does the line numbering tool format large files?+

Our line numbering tool automatically pads line numbers with leading zeros (e.g. 01., 02., 03...) so that columns remain aligned when line counts reach double or triple digits.

Can this tool wrap text without cutting words in half?+

Yes, our Word Wrap algorithm measures continuous word tokens and breaks lines only at whitespace boundaries to keep words whole.

Is there a limit on how many lines I can format?+

No, this formatter processes thousands of lines locally in your browser memory with zero network latency.